Will any exhaust components of a 350 engine swap to a 305?

yes

now what would those components be, headers cause i really need headers off of a TPI car.

All.

a 350 and 305 are basically the same. A 305 has a 3.75" bore whereas the 350 has a 4.00" bore. The heads for the 305 have smaller combustion chambers but as far as your question is concerned, they are identical. headers, to manifolds, to cats, to mufflers can be used on both.

Thank You very much this may help me find the parts i need. It's Christmas time and i got $500 big ones to spend.